Inventories, net (Details) - USD ($) $ in Thousands	Apr. 30, 2017	Apr. 30, 2016
Inventories, net
Raw materials	$ 18,365	$ 11,609
Work in process	16,168	4,259
Finished goods	30,793	26,073
Inventories, gross	65,326	41,941
Reserve for inventory excess and obsolescence	(5,250)	(4,455)
Inventories, net	60,076	37,486
Inventory consigned to others	$ 4,039	$ 5,329

Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

+ References

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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No definition available.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount of valuation reserve for inventory.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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- Definition

Gross amount of inventory owned by the entity but in the hands of a customer, typically a reseller.

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